Correct Answer : internal efficiency
Correct Answer : when the cross-section of the nozzle decreases continuously from entrance to exit
Correct Answer : 90°
Correct Answer : isentropic flow
Correct Answer : choked
Correct Answer : Both (A) and (B)
Correct Answer : heat energy of steam into kinetic energy
Correct Answer : velocity decreases
Correct Answer : All of the above
Correct Answer : bleeding
Correct Answer : wholly in nozzle
Correct Answer : 282 kW
Correct Answer : increases
Correct Answer : 0.582
Correct Answer : throat and exit
Correct Answer : V = 44.72 √K hd
Correct Answer : 0.4
Correct Answer : single rotor impulse turbine
Correct Answer : Vb = V cos α
Correct Answer : decreased work output per unit mass of steam as well as increased thermal efficiency
Correct Answer : partly as an impulsive force and partly as a reaction force
Correct Answer : each row of blades
Correct Answer : energy supplied to the blades per kg of steam to the total energy supplied per stage per kg of steam
Correct Answer : decreases
Correct Answer : the expansion of steam takes place partly in the fixed blades and partly in the moving blades
Correct Answer : stage efficiency
Correct Answer : Correct
Correct Answer : workdone on the blades to the energy supplied to the blades
Correct Answer : diagram efficiency
Correct Answer : increase the entropy
Correct Answer : To increase the velocity of steam above sonic velocity (super-sonic) by expanding steam below the critical pressure, the divergent portion for the nozzle is not necessary.
Correct Answer : The efficiency of steam turbines is greater than steam engines.
Correct Answer : superheated steam
Correct Answer : cos² α
Correct Answer : 640/3 √m/s
Correct Answer : more
Correct Answer : no heat drop in moving blades
Correct Answer : True
Correct Answer : isentropic
Correct Answer : Agree
Correct Answer : cumulative heat drop to the isentropic heat drop
Correct Answer : low pressure and a high velocity
Correct Answer : underdamping
Correct Answer : blading efficiency
Correct Answer : maximum
Correct Answer : 8 times
Correct Answer : governing
Correct Answer : the steam is expanded in nozzles only and there is a pressure drop and heat drop
Correct Answer : when the cross-section of the nozzle increases continuously from entrance to exit
Correct Answer : pressure and velocity both decreases
Correct Answer : relative velocity at the inlet of the moving blade is equal to that at the outlet
Correct Answer : p2 / p1
Correct Answer : gross efficiency
Correct Answer : pass out turbine
Correct Answer : there is no pressure drop and fluid does not flow through the nozzle
Correct Answer : very high
Correct Answer : equal to the velocity of sound
Correct Answer : identical fixed and moving blades
Correct Answer : dynamic
Correct Answer : 5.46 bar
Correct Answer : ηS = ηB x ηN
Correct Answer : curved
Correct Answer : 50 percent
Correct Answer : Rankine efficiency
Correct Answer : for small power purposes and high speeds
Correct Answer : maintain the speed of the turbine
Correct Answer : 0.528
Correct Answer : less
Correct Answer : decrease the mass flow rate and to decrease the wetness of steam
Correct Answer : 10 to 15%
Correct Answer : α1 = βâ‚‚ and βâ‚ = αâ‚‚
Correct Answer : isentropic process
Correct Answer : zero
Correct Answer : equal to
Correct Answer : Vb = 0.5 V cos α
Correct Answer : high pressure and a low velocity
Correct Answer : 1.02 to 1.06
Correct Answer : pressure decreases while velocity increases
Correct Answer : degree of undercooling
Correct Answer : nozzle efficiency
Correct Answer : Any one of the above
Correct Answer : Rankine cycle
Correct Answer : heat drop in moving blades to the heat drop in fixed blades plus heat drop in moving blades
Correct Answer : pressure-velocity compounded turbine
Correct Answer : 0.577
Correct Answer : 450 m/s
Correct Answer : in the divergent portion of the nozzle
Correct Answer : pressure compounded turbine
Correct Answer : blades are equiangular and frictionless